IR43x1. Features. Package. Typical Connection. Half-Bridge, Full-Bridge. Topology 160 W/ 4 Ω. *IR4301 Output power (Typical, THD+N=10%) 120 W/ 3 Ω - PDF

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IR43x1 Features Product Summary Integrated analog input Class D audio amplifier in a small 5 x 6 mm PQFN package High peak music power output No mechanical heatsink required Split or single power supply

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IR43x1 Features Product Summary Integrated analog input Class D audio amplifier in a small 5 x 6 mm PQFN package High peak music power output No mechanical heatsink required Split or single power supply Differential or single-ended input Over-current, over-temperature and under voltage protections with self-reset function Start and stop click noise reduction High noise immunity RoHS compliant Half-Bridge, Full-Bridge Topology *IR4301 Output power (Typical, THD+N=10%) 160 W/ 4 Ω *IR4321 Output power (Typical, THD+N=10%) 90 W/ 4 Ω 120 W/ 3 Ω 135 W/ 2 Ω 35 W/ 4 Ω *IR4311 Output power (Typical, THD+N=10%) 45 W/ 3 Ω *Residual noise (AES-17, IHF-A, typical) *THD+N (1kHz, 1W, 4 Ω, typical) * In typical application example Typical Applications Home theatre systems Docking station audio systems PC audio systems Musical instruments Karaoke amplifiers Game consoles Powered speaker systems General purpose audio power amplifiers 250 μrms 0.02 % Package 5x6mm PQFN22 Typical Connection +B CSH B P AA INPUT S P Speaker CSD SS N International Rectifier -B April 22, 2013 Table of Contents Page Typical Connection Diagram 1 Qualification Information 4 Absolute Maximum Ratings 5 Recommended Operating Conditions 7 Electrical Characteristics 8 Functional Block Diagram 11 Input/Output Pin Equivalent Circuit Diagram 12 Lead Definitions 13 Lead Assignments 13 Package Details 14 Part Marking Information 15 Ordering Information International Rectifier Description The IR43x1 integrates PWM controller and digital audio MOSFETs forming a high performance Class D audio amplifier. As a result of fully optimized MOSFETs co-packed with a dedicated controller IC, the IR43X1operates without mechanical heatsink attached in a typical music playback usage. High voltage ratings and noise immunity in the controller IC ensures reliable operation over various environmental conditions. A small 5x6 mm PQFN package enhances the benefit of smaller size of Class D topology. The IR43x1 are a lead-free, ROHS compliant. Typical Connection Diagram 1. Inverting Amplifier +B CSH B P AA INPUT P CSD S Speaker SS N -B 2. Differential Amplifier +B CSH B P AA P CSD S Speaker SS N -B International Rectifier 3. Single Power Supply CSH B P AA P S Speaker +bus CSD SS N IRTUAL Qualification Information Qualification Level Moisture Sensitivity Level Machine Model Human Body Model IC Latch-Up Test RoHS Compliant Industrial Comments: This family of ICs has passed JEDEC s Industrial qualification. IR s Consumer qualification level is granted by extension of the higher Industrial level. MSL2 (per IPC/JEDEC J-STD-020C) Class B (per JEDEC standard EIA/J22-A115) Class 2 (per EIA/JEDEC standard J22-A114) Class I, Level A (per J78) Yes Qualification standards can be found at International Rectifier s web site Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information. Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information International Rectifier Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to =N; all currents are defined positive into any lead. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air conditions. Symbol Definition Min Max Units IR P P pin positive power supply rail voltage IR IR IR B High side floating supply voltage IR IR CSH CSH pin input voltage S -0.3 B +0.3 S High side floating supply voltage B -15 B +0.3 CC Low side supply voltage AA Floating input positive supply voltage IR IR IR SS Floating input negative supply voltage (See I SSZ ) +0.3 Floating input supply ground voltage SS -0.3 AA +0.3 I IN Input current between and pins - ±3 ma CSD CSD pin input voltage SS -0.3 AA +0.3 P P pin input voltage SS -0.3 AA +0.3 I AAZ Floating input supply zener clamp current - 20 I SSZ Floating input negative supply zener clamp current - 20 I CCZ Low side supply zener clamp current - 20 ma I BSZ Floating supply zener clamp current - 20 d S /dt Allowable s voltage slew rate - 50 /ns d SS /dt Allowable ss voltage slew rate - 50 /ms 25ºC IR Continuous output current, from P to S, S IR to N, CC =10, B - S =10 IR ºC IR Continuous output current, from P to S, S IR to N, CC =10, B - S =10 IR A I DM IR Pulsed output current, from P to S, S to N, CC =10, B - S =10 IR IR IR Pd Power T C = 25 C IR W IR International Rectifier Rth JC Thermal resistance, junction to case IR C/W IR IR T JIC Control IC junction temperature T JFET FET junction temperature T S Storage Temperature C T L Lead temperature (Soldering, 10 seconds) and contain clamping diodes between the two pins. AA - SS, cc- and B-S contain internal shunt zener diodes. Please note that the voltage ratings of these can be limited by the clamping current. For the rising and falling edges of step signal of 10. ss=15 to 200. Per MOSFET Repetitive rating, pulse width limited by max. junction temperature International Rectifier Recommended Operating Conditions For proper operation, the device should be used within the recommended conditions below. The ss and s offset ratings are tested with supplies biased at =N, AA - SS =9.6, CC =12 and B - S =12. All voltage parameters are absolute voltages referenced to ; all currents are defined positive into any lead. Symbol Definition Min. Max. Units P Positive power supply rail voltage, without heatsink Positive power supply rail voltage, with heatsink IR IR IR IR IR IR B High side floating supply absolute voltage S +10 S +14 S High side floating supply offset voltage IR IR IR AA Floating input positive supply voltage SS SS + 15 SS Floating input negative supply voltage IR IR IR I AAZ Floating input supply zener clamp current 1 15 I SSZ Floating input negative supply zener clamp current 1 15 CC Low side fixed supply voltage IC and pins common mode input voltage SS + 2 AA - 2 Inverting input voltage ma CSD CSD pin input voltage SS AA P P pin input voltage SS AA C P P pin phase compensation capacitor to 1 - nf CSH CSH pin input voltage S B dss/dt Allowable ss voltage slew rate upon power-up - 50 /ms f SW Switching Frequency khz T A Ambient Temperature C Logic operational for s equal to 5 to +80. Logic state held for s equal to 5 to BS. input voltage is limited by I AAZ and I SSZ. ss ramps up from 0 to International Rectifier Electrical Characteristics CC, BS = 12, SS = S = N ==0, AA =9.6 and T A =25 C unless otherwise specified. Symbol Definition Min Typ Max Units Test Conditions Low Side Supply U CC+ cc supply ULO positive threshold U CC- cc supply ULO negative threshold U CCHYS U CC hysteresis I QCC Low side quiescent current ma I CC Low side operating current ma f=400khz CLAMPL Low side zener diode clamp voltage I CC =5mA High Side Floating Supply U BS+ High side well ULO positive threshold U BS- High side well ULO negative threshold U BSHYS U BS hysteresis I QBS High side quiescent current ma CLAMPH High side zener diode clamp voltage I BS =5mA Floating Input Supply A+, A- floating supply U AA+ ULO positive threshold from SS U AA- U AAHYS I QAA0 I QAA1 I QAA2 I LKM CLAMPM+ CLAMPM- A+, A- floating supply ULO negative threshold from SS U AA hysteresis Floating Input positive quiescent supply current ma Floating Input positive quiescent supply current ma Floating Input positive quiescent supply current ma Floating input side to Low side leakage current AA floating supply zener diode clamp voltage, positive, with respect to SS floating supply zener diode clamp voltage, negative, with respect to µa SS =0, pin floating SS =0, pin floating SS =0, pin floating AA =9.6, SS =0, CSD =SS AA =9.6, SS =0, CSD =AA AA =9.6, SS =0, CSD = AA = SS = = 100 I AA =5mA, I SS =5mA, =0, CSD =SS I AA =5mA, I SS =5mA, =0, CSD =SS International Rectifier Electrical Characteristics (cont d) CC, BS = 12, SS = S = N ==0, AA =9.6 and T A =25 C unless otherwise specified. Symbol Definition Min Typ Max Units Test Conditions Audio Input ( =0, AA =4.8, SS =-4.8) OS Input offset voltage m I BIN Input bias current na GBW Small signal bandwidth C MHz P =1nF, Rf=0 g m OTA transconductance ms =0, =10m G OTA gain db PWM th PWM PWM comparator threshold in P - ( AA - SS )/2 - f OTA P pin star-up local oscillation frequency MHz CSD = Ton P to S rising edge propagation delay ns Toff P to S trailing edge propagation delay ns Deadtime: Low-side turn-off to P=30, DT High-side turn-on (DT LO-HO ) & N= ns High-side turn-off to Low-side turn-on (DT HO-LO ) Power MOSFET (FET1, FET2) (IR4301) (BR)DSS Drain-to-Source breakdown GS =0, voltage I D =250uA R DS(ON) FET on resistance mω GS =10, I D =3.3A Qg Total gate charge nc I LK0 P leakage current, S=N µa P =80, CSD =SS I LK1 P leakage current, S=P µa Power MOSFET (FET1, FET2) (IR4321) (BR)DSS Drain-to-Source breakdown GS =0, voltage I D =250uA R DS(ON) FET on resistance mω GS =10, I D =3.3A Qg Total gate charge nc I LK0 P leakage current, S=N µa P =60, CSD =SS I LK1 P leakage current, S=P µa Power MOSFET (FET1, FET2) (IR4311) (BR)DSS Drain-to-Source breakdown GS =0, voltage I D =250uA R DS(ON) FET on resistance mω GS =10, I D =3.6A Qg Total gate charge nc I LK0 P leakage current, S=N µa P =40, CSD =SS I LK1 P leakage current, S=P µa International Rectifier Electrical Characteristics (cont d) CC, BS = 12, SS = S = N ==0, AA =9.6 and T A =25 C unless otherwise specified. Symbol Definition Min Typ Max Units Test Conditions Protection I OCP Positive OC threshold A I OCN Negative OC threshold A th1 CSD pin shutdown release threshold 0.62x AA 0.70x AA 0.78x AA th2 CSD pin self-reset threshold 0.26x AA 0.30x AA 0.34x AA CSD pin discharge current µa I CSD+ I CSD- t SD t OCP t OCN T SD T SDHYS CSD pin charge current Shutdown propagation delay from S th1 to Shutdown Propagation delay time from I O I OCP to Shutdown Propagation delay time from I O I OCN to Shutdown Over temperature shutdown threshold in controller IC Over temperature shutdown threshold hysteresis µa ns ns ns ºC ºC CSD = SS +4.8 CSD = SS +4.8 P = SS P = SS P = SS International Rectifier Functional Bock Diagram AA CSH B P D G S P SS CSD G D S S N International Rectifier Input/Output Pin Equivalent Circuit Diagrams CSH 10k P B AA 15 Clamp HO G D S 5 Zener 5 Zener Clamp CC S LO G D S SS N AA CC P or CSD DT, REF or OCSET SS International Rectifier Lead Definitions Pin # Symbol Description 1 AA Floating input positive supply 2 for internal shunt zener diodes to AA and SS 3 Analog non-inverting input 4 Analog inverting input 5 P PWM comparator input 6 CSD Shutdown timing capacitor / shutdown input 7 SS Floating input negative supply 8 Low side supply 9 Low side supply return, internally connected to N 10 N Negative power supply, internally connected to externally 11 S PWM output 12 P Positive power supply 13 B High side floating supply, referenced to S 14 CSH High side over current sensing input, referenced to S 15 SUB Internally connected to (Do not use as supply return) Lead Assignments (Top iew) International Rectifier Package Details International Rectifier Board Mounting Information Refer to Application Note AN-1170 Audio Power Quad Flat No-Lead (PQFN) Board Mounting Application Note. Part Marking Information Ordering Information Base Part Number Package Type Standard Pack Form Quantity Complete Part Number IR4301M PQFN22 5x6mm Tape and Reel 4000 IR4301MTRPBF IR4321M PQFN22 5x6mm Tape and Reel 4000 IR4321MTRPBF IR4311M PQFN22 5x6mm Tape and Reel 4000 IR4311MTRPBF The information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no responsibility for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement of patents or of other rights of third parties which may result from the use of this information. No license is granted by implication or otherwise under any patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to change without notice. This document supersedes and replaces all information previously supplied. For technical support, please contact IR s Technical Assistance Center WORLD HEADQUARTERS: 101 N. Sepulveda Blvd., El Segundo, California Tel: (310) International Rectifier
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